/*
 * Copyright (c) 2012, 2016, Oracle and/or its affiliates. All rights reserved.
 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
 *
 * This code is free software; you can redistribute it and/or modify it
 * under the terms of the GNU General Public License version 2 only, as
 * published by the Free Software Foundation.  Oracle designates this
 * particular file as subject to the "Classpath" exception as provided
 * by Oracle in the LICENSE file that accompanied this code.
 *
 * This code is distributed in the hope that it will be useful, but WITHOUT
 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
 * version 2 for more details (a copy is included in the LICENSE file that
 * accompanied this code).
 *
 * You should have received a copy of the GNU General Public License version
 * 2 along with this work; if not, write to the Free Software Foundation,
 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
 *
 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
 * or visit www.oracle.com if you need additional information or have any
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 */
package com.oracle.truffle.regex.tregex.matchers;

/**
 * A character matcher that always matches.
 */
public final class AnyMatcher implements CharMatcher {

    private AnyMatcher() {
    }

    public static final AnyMatcher INSTANCE = new AnyMatcher();

    public static final CharMatcher[] INSTANCE_ARRAY = new CharMatcher[]{INSTANCE};

    public static CharMatcher create() {
        return INSTANCE;
    }

    public static CharMatcher create(boolean invert) {
        return invert ? EmptyMatcher.create() : create();
    }

    @Override
    public boolean match(char c) {
        return true;
    }

    @Override
    public String toString() {
        return "any";
    }
}
